[PATCH] D12706: Handle non-constant shifts in computeKnownBits, and use computeKnownBits for constant folding in InstCombine/Simplify
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Tue Sep 8 15:06:04 PDT 2015
hfinkel updated this revision to Diff 34270.
hfinkel added a comment.
Include the update for a regression test I missed in the last patch (load-combine-metadata.ll). Once we simplify based on known bits, if we have range metadata that restricts to a single value, then we'll use it to constant fold the result. This is not what the test was supposed to be testing, so I've just changed the ranges on the metadata in the test.
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